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The ac4C-epitranscriptome of schizophrenia animal model

ABSTRACT: the ac4C-epitranscriptome of schizophrenia animal model

PROVIDER: PRJNA954887 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR24150116_1.fastq.gz	Fastqsanger.gz
	SRR24150116_2.fastq.gz	Fastqsanger.gz
	SRR24150117_1.fastq.gz	Fastqsanger.gz
	SRR24150117_2.fastq.gz	Fastqsanger.gz
	SRR24150118_1.fastq.gz	Fastqsanger.gz

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the ac4C-epitranscriptome of schizophrenia animal model

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Project description:Massive numbers of modified bases in mRNAs sculpt the epitranscriptome and play vital roles in RNA metabolism. The only known acetylated RNA modification, N-4-acetylcytidine (ac4C), is highly conserved across cell types and among species. Although the GCN5-related acetyltransferase 10 (NAT10) functions as an ac4C writer, the mechanism underlying the acetylation process is largely unknown. In this study, we identified the NAT10/PCBP/TDP43 complex as an mRNA ac4C writer in mammalian cells. We identified RNA-binding proteins (RBPs) affiliated with two different families, PCBP1/2 (poly(rC)-binding protein 1/2) and TDP43 (TAR DNA binding protein 43), as NAT10 adaptors for mRNA tethering and substrate selection. Knockdown of the adaptors resulted in decreased mRNA acetylation abundance in HEK293T cells, with globally reduced density in 5`-untranslated region (UTR) and coding sequence (CDS) and ablated cytidine-rich ac4C motifs. The adaptors also affect the ac4C sites by recruiting NAT10 to their binding sequences. The presence of the NAT10/PCBP/TDP43 complex in mouse testes highlights its potential physiological functions in vivo. These findings reveal the composition of the mRNA ac4C writer complex in mammalian cells and expand our knowledge of mRNA acetylation and ac4C site preferences.

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